Meanwhile, I remember a Mythbusters episode where they tested the myth that if you take cheap vodka and run it through a Brita water filter, it makes it better.
They took a bottle of cheap vodka, took a sample out, filtered the rest, took another sample and set it aside, and re-filtered the remaining vodka, and repeated this 10 times, so that they had a spectrum of vodka samples from filtered zero times to 10 times. They then brought on a vodka expert to taste test them and randomized the order of the samples to see if he could re-order them based on the number of times they went through the filter.
And he did it PERFECTLY.
IIRC, Adam and Jamie could tell the difference after 1 run through the filter, but not further runs.
They took a bottle of cheap vodka, took a sample out, filtered the rest, took another sample and set it aside, and re-filtered the remaining vodka, and repeated this 10 times, so that they had a spectrum of vodka samples from filtered zero times to 10 times. They then brought on a vodka expert to taste test them and randomized the order of the samples to see if he could re-order them based on the number of times they went through the filter.
And he did it PERFECTLY.
IIRC, Adam and Jamie could tell the difference after 1 run through the filter, but not further runs.